<?php
// echo `php "F:\\net-taxi\\cli\\cli-netcar.php" guangdong`;

// die;
while (1) {

    $startTime = microtime(1); 
    // ----------
    echo `php "F:\\net-taxi\\cli\\cli-netcar.php" guangdong`;
    // ----------
    if (($leftTime = $startTime + 15 - microtime(1)) > 0) {
        // echo $leftTime,PHP_EOL;
        echo "请求：".date('Y-m-d H:i:s'),PHP_EOL;
        usleep($leftTime * 1000000);
    }else echo $leftTime, PHP_EOL;
}